There are several wheelchair companies on the net, just type in Dog Wheelchairs. The one I had was from Wheelchairs for Dogs. Com. Mary Heald bought mine from me for her Henry last August. If you want her address. Please e-mail me privately, she may still have it. But another thought is to look on E-Bay for the Quad chair, as I found another dog wheelchair on E-bay which gave me an idea of what to charge for mine. Chance and I continue to hope for Hugo's recovery, glad the acupuncture is working, we had good results from it as well, Daisy and Chance